We present a novel method for analyzing social behavior. Continuous videos are segmented into action `bouts’ by building a temporal context model that combines features from spatio-temporal energy and agent trajectories. The method is tested on an unprecedented dataset of videos of interacting pairs of mice, which was collected as part of a state-of-the-art neurophysiological study of behavior. The dataset comprises over 88 hours (8 million frames) of annotated videos. We find that our novel trajectory features, used in a discriminative framework, are more informative than widely used spatio-temporal features; furthermore, temporal context plays an important role for action recognition in continuous videos. Our approach may be seen as a baseline method on this dataset, reaching a mean recognition rate of 61.2% compared to the expert’s agreement rate of about 70%.<\/p>\n","protected":false},"excerpt":{"rendered":"
We present a novel method for analyzing social behavior. Continuous videos are segmented into action `bouts’ by building a temporal context model that combines features from spatio-temporal energy and agent trajectories. The method is tested on an unprecedented dataset of videos of interacting pairs of mice, which was collected as part of a state-of-the-art neurophysiological […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"text","value":"Xavier P. Burgos-Artizzu","user_id":0},{"type":"user_nicename","value":"pdollar","user_id":"33221"},{"type":"text","value":"Dayu Lin","user_id":0},{"type":"text","value":"David J. 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